题目内容
化简比
0.75:4=
:0.2=
0.75:4=
| 7 |
| 8 |
0.75:4
=(0.75×20):(4×20)
=15:80
=(15÷5):(80÷5)
=3:16
:0.2
=(
×40):(
×40)
=35:8.
=(0.75×20):(4×20)
=15:80
=(15÷5):(80÷5)
=3:16
| 7 |
| 8 |
=(
| 7 |
| 8 |
| 1 |
| 5 |
=35:8.
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